Crusher.



No. 734.332. PATENTED JULY 21, 1903..

A TTOHNEYS UNITED STATES 'Patented July 21, 190e..

PATENT OFFICE.

CRUSHER.

SPECIFICATION forming part of Letters Patent No. 734,332, dated July 21,1903.

Application tiled January 14,1902. Serial No. 89,680'. (No model.) I

To all whom it may concern,.-

Be it known that LTIMOTHY EDWARD HUR- LEY, a citizen of the UnitedStates, and a resident of Butte, in the county of Silverbow and State ofMontana, have invented a new and Improved Crusher, of which thefollowingis a fnll,clear, and exact description.

This invention relates to improvements in machines for crushing rock andthe like; and the object is to provide a crusher with itspitman-bearings of novel construction so arranged that friction will bereduced to a minimum. Other novel features will appear in the generaldescription.

I will describe a Crusher embodying my invention and then point out thenovel features in the appendedclaim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional elevation ofa crusher embodying my invention.Fig. 2 isa section on the line :n c of Fig. 3 with a portion of an endplate of the pitnnanhead broken away. Fig. 3 is a section on the line yy of Fig. 1, and Fig. 4 shows an oil carrier or distributer employed.

Referring to the drawings, l designates the frame of the machine, in theforward portion of which is a fixed jaw-back 2 anda fixed jaw-plate 3,these parts *being of the usual construction. The swinging jaw 4has onits front face the usual swing jaw-plate 5, and this jaw 4 is mounted ona shaft 6, having bearingsin uprights 7, formed integrally withV thesides of the frame, andin plates 8, bolted.

to said. uprights 7. It will be noted by the dotted lines in Fig. l thatvthe bearingportions in the uprights 7 at the top extend beyond avertical line drawn through the centerv of the shaft. By thisconstruction the main portion of the pressure or thrust will be borne bythe said uprights, thus lessening the pos` sibility of loosening the ingthe same.

The pitman 9 has toggle connection lOwith the swinging jaw and toggleconnection 1l with the toggle-block 12, engaged by the adjusting-wedge'13 in the usual manner. To

plates 8 or of breaktake the strain on the ends of the frame,.

bolts 14 are passed through the ends and the side portions of the frame1, the walls of l these bearings being provided with recesses 16 toreceive oil and an oil-ring or waste saturated in oil.

Arranged within the headof the pitlnan are bushings 17 18, which attheir outer ends engage against removable plates or rings 19, andattached to the eccentric between the inner ends of the bushings is acollar 20, the purpose of which will be hereinafter described. Thiscollar, it will be noted in Fig. 4, is provided with notches in itsperiphery. The b ushings 17 and 18-rnay be each made in sections, ifdesired, and they are held from rotation relatively to the head 2l ofthe pitman by means of feathers 22. Placed be- -tween the bushings andthe eccentric 'are the friction-rollers 23 24, which at their outer endsengage against thexplates or rings 19, and they are prevented frommovement toward each other by means of the collar. 20.

On the upper side of the head 2l ils-an oilcnp 25, and ducts26, 27, and28 lead from this oil-cup through the head, the ducts 26 and 28extending, respectively, through the` A bushings 17 and 18, while thecenter duct 27 discharges into the space between the inner ends of thebushings a-nd over the collar 20. When the machine is in operation, theoil will flow through the ducts 26 and 28, thoroughly lubricating therollers, and the oil passing through the duct 27 will fall into thechamber between the bushings, and the oil in the chamber will be carriedup andarcund and thoroughly distributed by means of the collar 20. Y

Having thus described my invention, I claim as-new and desire to secureby Letters Patent- In a c rusher, la frame, atixed jaw, a swinging jaw,an eccentric-shaft having bearingsin said frame, a pitman operated bythe eccentric-shaft and connected with the swinging jaw, bushingsarranged in the pitman-head andv surrounding the eccentric-shaft,removable plates on the sides of the head and engaging the outer endsofthe bushings, the in-r IOO rames ner ends of the bushings, and duetsat opposite sides of the central duct and extending through the saidbushings to the rollers, sub- I5 stantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

TIHOTHY EDWARD HURLEY. Witnesses:

H. A. REID, ALEX. GRAY.

